In research, the value of a compound depends entirely on knowing what is in the vial. Irreproducible results often trace back to the material, not the method. Our quality approach is built around that reality.
Our compounds are held to a ≥99% purity standard, characterized by high-performance liquid chromatography (HPLC). HPLC purity describes the fraction of detected material that is the target compound versus other detectable species.
Purity is necessary but not sufficient. Identity is confirmed by mass spectrometry, comparing the observed molecular mass against the theoretical mass for the compound's sequence. For blends, identity confirmation covers each component.
Purity and lot documentation is available on request for research buyers. If you need specific documentation for a procurement process, note it in your pricing request and we will include it.
A COA rewards people who know which numbers matter. We wrote a full guide on reading HPLC purity, mass-spec identity, and net peptide content: How to Read a Peptide Certificate of Analysis.